estrous


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es·trous

(es'trŭs),
Pertaining to estrus.
Synonym(s): estrual

estrous

(ĕs′trəs)
adj.
Of, relating to, or being in estrus.

es·trous

(es'trŭs)
Pertaining to estrus.
Synonym(s): estrual.

estrous

pertaining to or emanating from estrus.

estrous cycle
one of the two types of reproductive cycles, the other is the menstrual cycle of humans and primates. Regularly occurring periods during which the female is sexually active and receptive, estrus, separated by periods in which there is no sexual receptivity. This period is divided, on the basis of ovarian activity into metestrus (early corpus luteum development), diestrus (mature corpus luteum) and pro-estrus (period of follicle development). The details of estral activity are summarized in Table 17.
References in periodicals archive ?
Analysis of Variance (ANOVA) revealed no significant differences in paw withdrawal latencies between female that received saline and drug (5 min and 30 min) in the different estrous cycle phases (figure not shown); estrus: (F (3, 22)= 0.
Associations between emergence of follicular waves and fluctuations in FSh concentrations during the estrous cycle in ewes.
However, while more heifers treated with CIDR inserts demonstrated estrous behavior, we found no effect on the proportion that became pregnant.
Levels of luteinizing hormone in sera and pituitaries of ewes during the estrous cycle and anestrus.
Four main factors affect reproductive efficiency in dairy herds: days postpartum at first AI, estrous detection rate, conception rate, and pregnancy loss.
Therefore, we concluded that TG gene is not expressed in endometrial tissue of Balb/C mice at any stage of estrous cycle (Figure 1).
The estrous cycles of domestic ungulates such as the sheep, pig, cow, and horse are approximately 3 weeks in length.
The high level of progesterone during the luteal phase maintains pregnancy by keeping follicle-stimulating hormone (FSH) and estrogen in check, thereby preventing the mare from coming back into estrous and disrupting the newly established pregnancy.
They used naturally cycling mice that were allowed to go through their normal estrous cycles, akin to the menstrual cycle in women.